USB flash memory disk



FIG. 1 is a perspective view of a USB flash memory disk showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view showing the USB flash memory disk of our design in use. 

The ornamental design for a USB flash memory disk, as shown and described. 